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Is quitting an application frowned upon?
...ference is that pressing back button out of your activity might leave your UNIX process lying in wait just in case the user wants to revive your application. This is really no different than a modern operating system that caches recently accessed files in memory. After you quit your windows program,...
Daylight saving time and time zone best practices [closed]
...re both in a single field.
When storing timestamps as a numeric value, use Unix time - which is the number of whole seconds since 1970-01-01T00:00:00Z (excluding leap seconds). If you require higher precision, use milliseconds instead. This value should always be based on UTC, without any time zon...
How to profile a bash shell script slow startup?
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This was published at Unix & Linux - How to adjust time command to measure a program elapsed time
– F. Hauri
Apr 28 '14 at 9:19
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What should main() return in C and C++?
...efined in <cstdlib>).
Standard C — Common Extension
Classically, Unix systems support a third variant:
int main(int argc, char **argv, char **envp) { ... }
The third argument is a null-terminated list of pointers to strings, each of which is an environment variable which has a name, an ...
Check whether a path is valid in Python without creating a file at the path's target
... above tests.
Since NULL is the only character prohibited in pathnames on UNIX-oriented filesystems, let's leverage that to demonstrate the cold, hard truth – ignoring non-ignorable Windows shenanigans, which frankly bore and anger me in equal measure:
>>> print('"foo.bar" valid? ' + st...
What are the differences between git branch, fork, fetch, merge, rebase and clone?
...base and merge issues
Add your Git branch to your PS1 prompt (see https://unix.stackexchange.com/a/127800/10043), e.g.
The branch is selenium_rspec_conversion.
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C++ project organisation (with gtest, cmake and doxygen)
...ies that you cannot ignore, these are based on the long tradition with the Unix file system. These are:
trunk
├── bin : for all executables (applications)
├── lib : for all other binaries (static and shared libraries (.so or .dll))
├── include : for all header files
├─...
What is the difference between quiet NaN and signaling NaN?
...re not typically caught the same way as standard C++ exceptions.
In POSIX/Unix systems, floating point exceptions are typically caught using a handler for SIGFPE.
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How do I safely pass objects, especially STL objects, to and from a DLL?
...are largely specific to MSVC, though not exclusively—even C compilers on Unix platforms (and even different versions of the same compiler!) suffer from less-than-perfect interoperability. They're usually close enough, though, that I wouldn't be at all surprised to find that you could successfully ...
How do I use extern to share variables between source files?
...C is far from being the only compiler that supports it; it is prevalent on Unix systems). You can look for "J.5.11" or the section "Not so good way" in my answer (I know — it is long) and the text near that explains it (or tries to do so).
– Jonathan Leffler
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